@Article{MirandaMNHOLOP:2022:ImEuMa,
author = "Miranda, Marcela and Marinho, Marcelo Manzi and Noyma,
Nat{\'a}lia and Huszar, Vera L. M. and van Oosterhout, Frank and
L{\"u}rling, Miquel and Ometto, Jean Pierre Henry Balbaud and
Pacheco, Felipe Siqueira",
affiliation = "{Universidade Federal de Juiz de Fora (UFJF)} and {Universidade do
Estado do Rio de Janeiro (UERJ)} and {Universidade do Estado do
Rio de Janeiro (UERJ)} and {Universidade Federal do Rio de Janeiro
(UFRJ)} and {Wageningen University} and {Wageningen University}
and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Phosphorus balance in a tropical shallow urban pond in Southeast
Brazil: implications for eutrophication management",
journal = "Inland Waters",
year = "2022",
volume = "12",
number = "1",
pages = "78--93",
keywords = "birds, management, nutrients, restoration, sediment, water
quality.",
abstract = "A detailed mass balance that evaluates nutrient inputs and outputs
is fundamental to determining the most promising strategies to
mitigate eutrophication and its undesirable effects. However, such
analyses are rare in Brazilian urban ponds where water quality
impairment remains a significant issue. We performed a mass
balance to identify the main phosphorus (P) sources in a
hypereutrophic tropical shallow urban pond. We used the PCLake
model to estimate the P loading required to reduce phytoplankton
biomass. The water column was considered the primary unit in the
model. The P balance was calculated from external inputs, internal
inputs from bed sediment to the water column, and outputs from the
water column through surface water outflow and to the bed
sediments over a full hydrological year. The total P input into
the pond water (external and internal) was 35.3 mg m\−2
d\−1 and the output was 35.2 mg m\−2 d\−1.
The P balance revealed that contributions to the water column from
external and internal sources were 82.5% and 17.5%, respectively.
Birds were the main contributor to P input (76.0%). The highest P
loss from the water column was to the sediment (97.6%). Most of
the P leaving the water column to the sediment was retained in the
sediment, and part was returned to the water column through
internal loading. Measures to reduce eutrophication in this pond
should focus on integrated management to decrease both the
external and internal P sources by managing birds and avoiding P
release from sediment, and to decrease water residence time in the
pond.",
doi = "10.1080/20442041.2021.1915669",
url = "http://dx.doi.org/10.1080/20442041.2021.1915669",
issn = "2044-2041 and 2044-205X",
language = "en",
urlaccessdate = "29 jun. 2024"
}